DjVuErrorList.h

//C- -*- C++ -*-//C- -------------------------------------------------------------------//C- DjVuLibre-3.5//C- Copyright (c) 2002 Leon Bottou and Yann Le Cun.//C- Copyright (c) 2001 AT&T//C-//C- This software is subject to, and may be distributed under, the//C- GNU General Public License, either Version 2 of the license,//C- or (at your option) any later version. The license should have//C- accompanied the software or you may obtain a copy of the license//C- from the Free Software Foundation at http://www.fsf.org .//C-//C- This program is distributed in the hope that it will be useful,//C- but WITHOUT ANY WARRANTY; without even the implied warranty of//C- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the//C- GNU General Public License for more details.//C- //C- DjVuLibre-3.5 is derived from the DjVu(r) Reference Library from//C- Lizardtech Software. Lizardtech Software has authorized us to//C- replace the original DjVu(r) Reference Library notice by the following//C- text (see doc/lizard2002.djvu and doc/lizardtech2007.djvu)://C-//C- ------------------------------------------------------------------//C- | DjVu (r) Reference Library (v. 3.5)//C- | Copyright (c) 1999-2001 LizardTech, Inc. All Rights Reserved.//C- | The DjVu Reference Library is protected by U.S. Pat. No.//C- | 6,058,214 and patents pending.//C- |//C- | This software is subject to, and may be distributed under, the//C- | GNU General Public License, either Version 2 of the license,//C- | or (at your option) any later version. The license should have//C- | accompanied the software or you may obtain a copy of the license//C- | from the Free Software Foundation at http://www.fsf.org .//C- |//C- | The computer code originally released by LizardTech under this//C- | license and unmodified by other parties is deemed "the LIZARDTECH//C- | ORIGINAL CODE." Subject to any third party intellectual property//C- | claims, LizardTech grants recipient a worldwide, royalty-free, //C- | non-exclusive license to make, use, sell, or otherwise dispose of //C- | the LIZARDTECH ORIGINAL CODE or of programs derived from the //C- | LIZARDTECH ORIGINAL CODE in compliance with the terms of the GNU //C- | General Public License. This grant only confers the right to //C- | infringe patent claims underlying the LIZARDTECH ORIGINAL CODE to //C- | the extent such infringement is reasonably necessary to enable //C- | recipient to make, have made, practice, sell, or otherwise dispose //C- | of the LIZARDTECH ORIGINAL CODE (or portions thereof) and not to //C- | any greater extent that may be necessary to utilize further //C- | modifications or combinations.//C- |//C- | The LIZARDTECH ORIGINAL CODE is provided "AS IS" WITHOUT WARRANTY//C- | OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED//C- | TO ANY WARRANTY OF NON-INFRINGEMENT, OR ANY IMPLIED WARRANTY OF//C- | MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.//C- +------------------------------------------------------------------// // $Id: DjVuErrorList.h,v 1.10 2007/03/25 20:48:30 leonb Exp $// $Name: debian_version_3_5_20-7 $#ifndef _DJVUERRORLIST_H#define _DJVUERRORLIST_H#ifdef HAVE_CONFIG_H#include "config.h"#endif#if NEED_GNUG_PRAGMAS# pragma interface#endif#include "DjVuPort.h"#ifdef HAVE_NAMESPACESnamespace DJVU {
# ifdef NOT_DEFINED // Just to fool emacs c++ mode}
#endif#endifclass ByteStream;
/** @name DjVuErrorList.h This file implements a very simple class for redirecting port caster messages that would normally end up on stderr to a double linked list. @memo DjVuErrorList class. @author Bill C Riemers <docbill@sourceforge.net> @version #$Id: DjVuErrorList.h,v 1.10 2007/03/25 20:48:30 leonb Exp $#*///@{/** #DjVuErrorList# provides a convenient way to redirect error messages from classes derived from DjVuPort to a list that can be accessed at any time. */00095class DjVuErrorList : publicDjVuSimplePort
{
protected: /// The normal port caster constructor. DjVuErrorList(void);
public:
staticGP<DjVuErrorList> create(void) {returnnewDjVuErrorList();}
/// This constructor allows the user to specify the ByteStream.GURLset_stream(GP<ByteStream>);
/// Append all error messages to the listvirtualboolnotify_error(constDjVuPort * source, constGUTF8String & msg);
/// Append all status messages to the listvirtualboolnotify_status(constDjVuPort * source, constGUTF8String & msg);
/// Add a new class to have its messages redirected here.inlinevoidconnect( constDjVuPort &port);
/// Get the listing of errors, and clear the list.inlineGList<GUTF8String>GetErrorList(void);
/// Just clear the list.inlinevoidClearError(void);
/// Get one error message and clear that message from the list.GUTF8StringGetError(void);
/// Check if there are anymore error messages.inlineboolHasError(void) const;
/// Get the listing of status messages, and clear the list.inlineGList<GUTF8String>GetStatusList(void);
/// Just clear the list.inlinevoidClearStatus(void);
/// Get one status message and clear that message from the list.GUTF8StringGetStatus(void);
/// Check if there are any more status messages.inlineboolHasStatus(void) const;
/** This gets the data. We can't use the simple port's request data since we want to allow the user to specify the ByteStream. */virtualGP<DataPool>request_data (
constDjVuPort * source, constGURL & url );
private:
GURL pool_url;
GP<DataPool> pool;
GList<GUTF8String> Errors;
GList<GUTF8String> Status;
private: //dummy stuffstaticGURLset_stream(ByteStream *);
};
inlinevoid00154DjVuErrorList::connect( constDjVuPort &port )
{ get_portcaster()->add_route(&port, this); }
inlineGList<GUTF8String>00158DjVuErrorList::GetErrorList(void)
{
GList<GUTF8String> retval=(constGList<GUTF8String>)Errors;
Errors.empty();
return retval;
}
inlinevoid00166DjVuErrorList::ClearError(void)
{ Errors.empty(); }
inlineGList<GUTF8String>00170DjVuErrorList::GetStatusList(void)
{
GList<GUTF8String> retval=(constGList<GUTF8String>)Status;
Status.empty();
return retval;
}
inlinevoid00178DjVuErrorList::ClearStatus(void)
{ Status.empty(); }
inlinebool00182DjVuErrorList::HasError(void) const{ return !Errors.isempty(); }
inlinebool00186DjVuErrorList::HasStatus(void) const{ return !Status.isempty(); }
#ifdef HAVE_NAMESPACES}
# ifndef NOT_USING_DJVU_NAMESPACEusing namespace DJVU;
# endif#endif#endif